Rarely. Some weekend flights are cheap but otherwise it tends to be at least £50 more for a city flight. One-way journeys to heathrow and Gatwick both cost less

Rarely. Some weekend flights are cheap but otherwise it tends to be at least £50 more for a city flight. One-way journeys to heathrow and Gatwick both cost less than £10 (compared with £1.5-£2.6 for city) so that this doesn't really make a difference.